Ok it works :-), in the meantime I upgraded to leap 42.1 so I test it on leap 42.1 with plasma 5.5.4, network with wicked works after resume from sleep to ram and from hibernate to disk, the network connection is wired and automatic, but I have not the network icon in system tray where to choose if I want to change and use wireless. Networkmanager seems do not have this problem, it works well after resume from sleep to ram. Manythanks, ciao :-) pier